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Internal Frame Backpacks

(296 products)
Products (296)
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    REI Co-opTrail 25 Pack
    $99.95
    173 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    1.81 to 1.87 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    OspreyKestrel 38 Pack - Men's
    $156.73
    Save 25%
    compared to  $210.00
    25 reviews with an average rating of 4.9 out of 5 stars
    Gear Capacity:
    36 to 38 liters
    Weight:
    4.07 to 4.24 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    REI Co-opTrail 40 Pack - Men's
    $159.00
    54 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    40 to 41 liters
    Weight:
    2.75 to 3 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    OspreySirrus 24 Pack - Women's
    $134.73
    Save 25%
    compared to  $180.00
    6 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    2.56 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    REI Co-opTrail 40 Pack - Women's
    $159.00
    30 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    40 to 41 liters
    Weight:
    2.56 to 2.87 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    GregoryBaltoro 75 Pack - Closeout - Men's
    $264.73
    Save 30%
    compared to  $379.95
    81 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 to 75 liters
    Weight:
    4.8 to 5 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    GregoryParagon 58 Pack - Closeout - Men's
    $194.73
    Save 30%
    compared to  $279.95
    6 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 liters
    Weight:
    3.5 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    REI Co-opFlash Air 50 Pack - Men's
    $299.00
    47 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    49 to 51 liters
    Weight:
    1.81 to 1.94 lbs
    Features:
    Ultralight
    Reservoir Compatible
    REI Co-opTrailmade 60 Pack - Men's
    $106.83
    Save 40%
    compared to  $179.00
    11 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.69 lbs
    Features:
    Reservoir Compatible
    OspreyAtmos AG 65 Pack - Men's
    $370.00
    145 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 to 68 liters
    Weight:
    4.61 to 4.81 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryDeva 60 Pack - Closeout - Women's
    $208.73
    Save 40%
    compared to  $349.95
    9 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 65 liters
    Weight:
    4.61 to 4.96 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryBaltoro 65 Pack - Closeout - Men's
    $243.73
    Save 30%
    compared to  $349.95
    110 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 to 65 liters
    Weight:
    4.72 to 4.92 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    GregoryKalmia 50 Pack - Women's
    $200.73
    Save 35%
    compared to  $309.95
    5 reviews with an average rating of 4.8 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    45 to 50 liters
    Weight:
    4.3 to 4.37 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    GregoryJuno 30 Pack - Women's
    $119.73
    Save 25%
    compared to  $159.95
    4 reviews with an average rating of 3.8 out of 5 stars
    Gear Capacity:
    30 liters
    Weight:
    2.06 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    OspreyAether 65 Pack - Men's
    $370.00
    104 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 to 68 liters
    Weight:
    4.92 to 4.96 lbs
    Features:
    Reservoir Compatible
    Raincover Included
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    REI Co-opFlash Air 50 Pack - Women's
    $299.00
    36 reviews with an average rating of 3.9 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    49 to 51 liters
    Weight:
    1.75 to 1.87 lbs
    Features:
    Ultralight
    Reservoir Compatible
    Top Rated
    REI Co-opTrailmade 60 Pack - Men's
    $189.00
    11 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.31 to 3.5 lbs
    Features:
    Reservoir Compatible
    Top Rated
    OspreyAtmos AG 50 Pack - Men's
    $350.00
    52 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 to 53 liters
    Weight:
    4.32 to 4.51 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryDeva 70 Pack - Closeout - Women's
    $226.73
    Save 40%
    compared to  $379.95
    59 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday, Extended
    Gear Capacity:
    65 to 75 liters
    Weight:
    4.7 to 5.1 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    GregoryMaven 55 Pack - Closeout - Women's
    $187.73
    Save 30%
    compared to  $269.95
    5 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    52 to 55 liters
    Weight:
    3.31 to 3.38 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
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    Terms apply
    REI Co-opTrailmade 60 Pack - Women's
    $106.83
    Save 40%
    compared to  $179.00
    7 reviews with an average rating of 4.4 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.62 lbs
    Features:
    Reservoir Compatible
    REI Co-opFlash 55 Pack - Men's
    $229.00
    89 reviews with an average rating of 4.1 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    53 to 57 liters
    Weight:
    2.75 to 2.87 lbs
    Features:
    Ultralight
    Reservoir Compatible
    REI Co-opFlash 55 Pack - Women's
    $229.00
    81 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    53 to 57 liters
    Weight:
    2.62 to 2.75 lbs
    Features:
    Ultralight
    Reservoir Compatible
    DeuterTrail 25 Pack
    $99.73
    Save 26%
    compared to  $135.00
    2 reviews with an average rating of 3.0 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    2.25 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    GregoryArrio 22 Plus Pack
    $74.73
    Save 25%
    compared to  $99.95
    13 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    22 liters
    Weight:
    1.56 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    Mountain HardwearGnarwhal 25 Snow Pack
    $126.73
    Save 25%
    compared to  $170.00
    13 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    2.66 lbs
    REI OUTLET
    Top Rated
    Mountain HardwearJMT 35 L Pack
    $134.73
    Save 25%
    compared to  $180.00
    54 reviews with an average rating of 4.7 out of 5 stars
    Gear Capacity:
    35 liters
    Weight:
    2.59 to 2.6 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    OspreyDownburst 36 Pack
    $239.73
    Save 25%
    compared to  $320.00
    4 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    36 liters
    Weight:
    4.84 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    New arrival
    GregoryArrio 24 Pack
    $81.73
    Save 25%
    compared to  $109.95
    0 reviews
    Gear Capacity:
    24 liters
    Weight:
    1.87 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    OspreyStratos 36 Pack - Men's
    $164.73
    Save 25%
    compared to  $220.00
    13 reviews with an average rating of 3.5 out of 5 stars
    Gear Capacity:
    36 liters
    Weight:
    3.28 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
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